Arshad , Dr. A. Nekahi , S. McMeekin , M. Farzaneh 
 School of Engineering and Built Environment, Glasgow Caledonian University, United Kingdom
 Canada Research Chair on Atmospheric Icing Engineering of Power Networks (INGIVRE), Université du Québec à Chicoutimi, QC, Canada
Electric field distribution along an insulator surface is of prime importance for the long term performance of insulators. In this paper electric field and potential distribution along a standard 33 kV polymeric insulator were investigated under different pollution conditions. Effect of voltage type and polarity on the electric field and potential distribution under contaminated conditions were ...
S. Wang , Z. Huang ,
 Northwest A&F University, Yangling, Shaanxi, China
Radio frequency (RF) heating have potential as alternatives to chemical fumigation for disinfesting legumes. This study was conducted to investigate the feasibility of RF selective heating of insect larvae in 3 kg soybeans packed in a rectangular plastic container using a 6 kW, 27.12 MHz RF heating system. A finite element based computer simulation program-COMSOL Multiphysics® was used to solve ...
T. K. Chou, M. Chouteau, M. J. Yi
Department of Civil, Geological & Mining Engineering, École Polytechnique de Montréal, Montreal, QC, Canada
Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea
Time-lapse electrical resistivity tomography (ERT) method provides a non-invasive way to monitor subtle sub-surface changes caused by water flow such as in an infiltration test. Problems arise when the inversion models contain artifacts due to measurement errors, rapid change in soil electrical property during measurement time, etc. A new approach was developed by Kim et al. (2004) and (2009) ...
COMSOL Multiphysics Modelling for Measurement Device of Electrical Resistivity in Laboratory Test Cell
C. Rémi, M. Bergeron, and S. Moreau
Bioreactor landfill is based on a homogeneous distribution of the moisture content to increase waste biodegradation. Most of studies have shown that Electrical Resistivity Tomography (ERT) can be a suitable method to study water content variation (2D and 3D). ERT is influenced by many physical parameters and no single relationship with volumetric water content was yet established for Municipal ...
N. Badi, R. Mekala
Department of Physics, Center for Advanced Materials, University of Houston, Houston, TX, USA
Department of Electrical & Computer Engineering, University of Houston, Houston, TX, USA
Thermally conducting but electrically insulating materials are needed for heat-sink LED lighting applications. We report on a cost effective and innovative method based on creating core-shell nanoparticles in polymer with aluminum (Al) nanoparticles as the high thermal conductivity core and ultrathin aluminum oxide (Al?O?) as a capping shell. The solid oxide shell around the Al core prevents ...
A. Shetty, K. J. Vinoy, S. B. Krupanidhi
Electrical Communication Engineering, Indian Institute of Science, Bangalore, India
Materials Research Centre, Indian Institute of Science, Bangalore, India
As interest in the electromagnetic spectrum expands towards the infrared and terahertz range, the distinct advantages of using semiconductors instead of metals for plasmonic applications must be understood. Plasmonic resonances in gold (Au) and indium nitride (InN) gratings are studied, in the terahertz (?=30µm) regime. The electromagnetic properties of Au and InN are described by the Drude ...
J. Heinonen, M. Erdmanis, I. Tittonen
Aalto University, Department of Micro- and Nanosciences, Espoo, Finland
We present a simplified 3D model that simulates the operation of a linear microscale integrated ion trap. It employs a set of metalized electrodes, which are formed on top of an insulator layer on silicon substrate. The confinement in all three dimensions is provided by the application of the specific AC and DC voltages to the corresponding trap electrodes. The distribution of the trapping ...
3D Multiphysics Modeling of Bulk High-Temperature Superconductors for Use as Trapped Field Magnets - new
M. Ainslie, J. Zou, D. Hu, D. Cardwell
Department of Engineering, University of Cambridge, Cambridge, UK
The authors are currently investigating the use of bulk high temperature superconductors as trapped field magnets (TFMs) in order to increase the electrical and magnetic loading of an axial gap, trapped flux-type superconducting electric machine. In electric machines, the use of superconducting materials can lead to increases in efficiency, as well as power density, which results in reductions ...
OPTIMA pharma GmbH, Schwäbisch Hall, Germany
Electrostatically excited plasma waves can induce a “plasma wind” in the surrounding media or air. The lifted object has a shape of a flying saucer, just for better illustration. A travelling plasma wave propulsion requires a pre-ionized media around the surface and a travelling electrostatic field. A simplified plasma model was used to set up an EFD (electro fluid dynamic) approach into a ...
康正明 , 柯式镇 , 姜明 , 尹成芳 ,
引言：随着水平井和大斜度井的增多，随钻测井（LWD）技术越来越重要。随钻电磁波电阻率测井在随钻测井中应用最为广泛。在国外，随钻电磁波电阻率测井方法已经成为一种成熟的测井技术，但我国仍处于研究发展阶段。20世纪90年代，大庆成功地研制出2MHz电磁波电阻率测井仪器。本世纪，中油测井成功引进并研制出了随钻电磁波电阻率测井仪WPR。仪器仿真对国内引进该仪器进行生产以及实际测井资料处理解释具有指导意义。本文借助COMSOL Multiphysics®仿真平台，建立了二维轴对称模型。模型分为三层和多层，选择AC/DC模块中的磁场。通过LiveLink for MATLAB®实现脚本加载模型并控制数据按一定格式输出为文本文件。考查了APS公司的随钻电磁波电阻率仪器WPR仪器的探测特性，对比了仿真结果与APS公司商业宣传介绍的仪器特性。同时对比了COMSOL与同类有限元仿真软件的误差 ...